Ottoman Tughra on Black Onyx Stone Ellipse Silver Men's Ring. The face of the ring is engraved with the traditional Ottoman Empire design in the form of the Turkish tughra, an ornamental calligraphy that features the name of the Ottoman Sultan in a curled script. The ring's elliptical black onyx stone is set in sterling silver of the highest quality. The onyx is surrounded by six sparkling zircons set in an elegant curve. This ring is a perfect example of traditional craftsmanship met with modern materials. The ring's shape and construction are both well thought out for wearability. You can't go wrong with this stunning Ottoman Tughra on Black Onyx Stone Ellipse Silver Men's Ring. This ring is sure to get compliments whenever you wear it, whether you're dressing up or dressing down.